468638257 has 4 divisors (see below), whose sum is σ = 468749376. Its totient is φ = 468527140.

The previous prime is 468638251. The next prime is 468638281. The reversal of 468638257 is 752836864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 468638257 - 2¹¹ = 468636209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 468638257.

It is not an unprimeable number, because it can be changed into a prime (468638251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48973 + ... + 57754.

It is an arithmetic number, because the mean of its divisors is an integer number (117187344).

Almost surely, 2^468638257 is an apocalyptic number.

It is an amenable number.

468638257 is a deficient number, since it is larger than the sum of its proper divisors (111119).

468638257 is a wasteful number, since it uses less digits than its factorization.

468638257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111118.

The product of its digits is 1935360, while the sum is 49.

The square root of 468638257 is about 21648.0543467537. The cubic root of 468638257 is about 776.7463950973.

The spelling of 468638257 in words is "four hundred sixty-eight million, six hundred thirty-eight thousand, two hundred fifty-seven".